Wide receiver Cooper Kupp, safety John Johnson III and offensive lineman Jonah Jackson are out for an “extended period” due to injuries sustained in Week 2 against the Cardinals, but the season is not over

WOODLAND HILLS, Calif. – Rams head coach Sean McVay said Monday that injuries suffered by wide receiver Cooper Kupp (ankle), safety John Johnson III (shoulder) and offensive lineman Jonah Jackson (shoulder) in Week 2 against the Cardinals will keep those…